What do you think with the below Picture ?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Can you replace the question mark with the correct number in the below table sequence?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

Before Mount Everest was discovered, what was the highest mountain in the world?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

I taste better than I can smell. Who am I?